diff --git a/interface/external/3dconnexionclient/readme.txt b/interface/external/3dconnexionclient/readme.txt
index a8014b386d..1a0201d795 100644
--- a/interface/external/3dconnexionclient/readme.txt
+++ b/interface/external/3dconnexionclient/readme.txt
@@ -1,3 +1,4 @@
 The Mac version does not require any files.  The 3D Connexion driver should be installed from http://www.3dconnexion.eu/service/drivers.html
+You can copy the header files to the include dir, so that they get compiled in by xcode
 
-For Windows the provided header file is required: include/I3dMouseParams.h
\ No newline at end of file
+For Windows the provided header file is required: include/I3dMouseParams.h